1A Marked Man Lucky Diamond Rich is officially the most tattooed man on the planet. The Kiwi-born tattooist is completely covered in ink - the insides of his ears, the soles of his feet, even going so far as to tattoo his own penis. He tells 20/20 why he did it - how he did it - and what it's like to live inside the skin of the world's only Blue Man. Lucky wears a permanent and very public display of his obsession with ink, but as he tells 20/20's Sonya Wilson while he may look like something from another planet, he's just a bit of a rough diamond

2Given Up What drives a parent to simply drop their teenagers off at an emergency room, and drive away - leaving them for someone else to look after? When the State of Nebraska passed a Safe Haven law it was supposed to protect newborn babies from being abandoned, and allow them to be safely left with emergency services. Instead more than 30 children and teens were left at local hospitals. Who are these Safe Haven parents, and why would they do such a shocking thing? 20/20 investigates and uncovers desperate parents driven to the unthinkable by out of control temper tantrums, and threats of violence.

3Heart Headhunter So you've tried everything but you still haven't found that special someone to share the rest of your life with? Well meet the woman they call the Headhunter of the Heart. April Beyer works for men you'd think would have no need for help - with successful businesses, and often millions of dollars. But her help doesn't come cheap - at $30,000 a year. 20/20 takes an exclusive peek inside the dates of those she's trying to match-make, and discovers some surprises about who's really compatible.

4King of Cheap": He's a man who's proud to be called cheap - and in these tight economic times, he's giving 20/20 some handy hints on how to keep your money growing - for free! Roy Haynes has even managed to find a wife who's happy to go along with his penny pinching ways, after a wedding which cost a weighty $70 all up. He even swept up the rice neighbours threw and cooked it for dinner. It's a story that'll definitely have you thinking.

5For one 10 year old British girl, a lesson learned in school helped her to save the lives of her family and many others during the Boxing Day tsunami of 2004.